Alert archive / Tennessee / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 66, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Mar 25, 1997, 9:03 PM EST for Scott County, Tennessee. It was in force for 42 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 25, 1997, 9:03 PM EST (02:03 UTC)
- Expired
- Mar 25, 1997, 9:45 PM EST
- In force
- 42 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Scott County, TN
The radar
The Knoxville radar (KMRX), 103 km from the middle of the area, began a volume at 02:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 25, 9:15 PM EST | Thunderstorm Wind | Oneida, TN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 2.1 hours before the alert went out and 191 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 68 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1403 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 25, 3:18 PM EST, 5 hours 45 minutes earlier.
Area forecast discussion, Mar 25, 3:18 PM EST, 5 hours 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 318 PM EST TUE MAR 25 1997 AREA OBS THIS AFTERNOON INDICATE WINDS GUSTING TO AS MUCH AS 25 KTS AT CSV AND 30 KTS AT TYS. TOWER DATA SHOWS WINDS GUSTING TO NEAR 50 MPH AT ELEVATIONS GENERALLY 1600-4000 FT. BELIEVE THAT AS MIXING SUBSIDES LATER THIS AFTERNOON...ADVISORY CAN BE ALLOWED TO EXPIRE. WOULD STILL RECOMMEND WORDING ZONES AS WINDY OR CAUTION ADVISED ON AREA LAKES FOR TONIGHT AS WINDS WILL NOT DIE OUT COMPLETELY. THE AVN HAS NOW COME AROUND TO THE ETA SOLUTION OF A FASTER MORE PROGRESSIVE POS TILTED TROF WITH SOME ENERGY BEING LEFT BEHIND IN THE SOUTHWEST US. MAIN PCPN WILL OCCUR WITH COLD FRONT WHICH SHOULD REACH PLATEAU BY 03Z AND REACH THE CENTRAL MID ATLANTIC STATES BY 12Z. LOOKS LIKE A FAIRLY QUICK SHOT (6 HRS) OF RW/TRW. SVR THREAT VERY MINIMAL. MAY SEE ISOLATED WIND DAMAGE DUE TO STRONG LOW LVL WIND FIELDS ALREADY IN PLACE. THE QUESTION FOR TOMORROW IS HOW LONG LOW CLDS WILL HANG IN. FEEL THAT CLDS WILL BREAK UP NICELY BY AFTERNOON AS MUCH DRIER AIR AND SFC RDG FROM TX MOVE IN BEHIND THE CDFNT. WILL SEE A GOOD DEAL OF SUN. WOULD WORD FORECAST FOR WED AS DECREASING CLDS OR BCMG MOSUNNY. MODEL TEMPS FOR TOMORROW ARE CLOSE AND REASONABLE...GIVING ABOUT A 10 DEG DROP OFF TODAYS MAXES. THURS LOOKS LIKE A GOOD DAY WITH WARMING TEMPS UNDER EFFECTS OF SFC RDG. MOS LOOKS A LTL WARM OVERALL FOR MAX TEMPS THURS. WOULD TREND TWD FAN NOS. JL
Nearby
Severe Thunderstorm Warnings in Tennessee, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.